Liber office is compatible with a lot more systems, including Windows, OSX, and Linux, wile Microsoft Office´s newest version is restricted to just Windows 7 and Windows 8.
Word Processing:
Libreoffice Writer and Microsoft Word are incredibly similar. Writer has all the major features of Word, including a gramar cheker, a soild autosave system, support for a huge variety of formats, and plenty more. If a Word processor is all you really need, then Writer will do everithing Word can do and more.
Spreadsheets:
for the most part, Calc and Excel work the same way. Both can do asics calculations, handle light math, and organizer tables in a variety of ways. However, if you use a Excel macros an programming, then you´re going to struggle with Calc. The reason is that Calc has its own macro language and it´s not always compatible with Excel´s VBA format. This means if you´re trying to swictch over to Calc from Excel, you may need to redo a lot of your macros.
Pretentation software:
the word Power Point it´s a powerful piece of software and does pretentations better than most. Libreoffice´s pretentation software, Impress, is capable enought, but it not going to convert any naysayers.
The main issue with Impress is that it stil struggles occasionally when importing pretentations made in Power Point. Impress has meny missing fonts, it doesen´t have slide animations, animated diagrams and it doesn´t have support for videos exports.
It´s not all bad news for Impress, thougt. Impress can export presentations in a ton of fifferent formats, wich makes sharing presentations a heck of a lot easier because you don´t need to rely on someone else having Power Point.
